An industry group for IT services companies has asked the US Department of Justice to investigate Oracle's policies aimed at preventing customers using third-party service providers for Sun hardware.
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The Service Industry Association (SIA) claims that since acquiring Sun earlier this year, Oracle has changed policies on the maintenance of Sun equipment to discourage customers from using third-party support companies, according to US reports.
The SIA accused Oracle of trying to capture business from independent service organisations (ISOs) worth $2.4bn by pushing customers to buy maintenance services from Oracle, and of imposing requalification fees on customers that go to a third party for maintenance and later want to go back to Oracle.
The SIA claims ISOs do about half the maintenance on Sun hardware, charging on average 35% less than the suppliers of the equipment.
The SIA complained to Oracle in May, according to documents on the group's website, but Oracle rejected the allegations.